Sample 5152 collected eight kilometres east of this contact is a biotite- and hornblende-bearing granodiorite.
The last few kilometres had to be covered on donkeys, along a path made almost impassable by the winter rain.
For two decades, beginning in the mid-1980s, additional developments have occurred along this 1,500 kilometre frontier (see map 1).
A stretch of approximately 500 kilometres was covered in six and one half days, during the heat of summer, mostly without water.
These deposits are laterally continuous for a few kilometres and are not associated with any major channel sand body.
An appropriate rate of spread is obtained with rare dispersal at distances of the order of tens of kilometres.
These were collected from different outcrops several kilometres apart, within the mangrove swamp units of the area, with a vibracorer at very shallow depth.
The changes in the dipping of overlying strata can be traced over distances of several kilometres.
